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nix-env: respect meta.outputsToInstall
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For convenience, you can now say
$ nix-env -f channel:nixos-16.03 -iA hello
instead of
$ nix-env -f https://nixos.org/channels/nixos-16.03/nixexprs.tar.xz -iA hello
Similarly,
$ nix-shell -I channel:nixpkgs-unstable -p hello
$ nix-build channel:nixos-15.09 -A hello
Abstracting over the NixOS/Nixpkgs channels location also allows us to
use a more efficient transport (e.g. Git) in the future.
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Thus, -I / $NIX_PATH entries are now downloaded only when they are
needed for evaluation. An error to download an entry is a non-fatal
warning (just like non-existant paths).
This does change the semantics of builtins.nixPath, which now returns
the original, rather than resulting path. E.g., before we had
[ { path = "/nix/store/hgm3yxf1lrrwa3z14zpqaj5p9vs0qklk-nixexprs.tar.xz"; prefix = "nixpkgs"; } ... ]
but now
[ { path = "https://nixos.org/channels/nixos-16.03/nixexprs.tar.xz"; prefix = "nixpkgs"; } ... ]
Fixes #792.
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This prevents the builder from being affected by whatever the host
system limits happen to be.
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This way we don't have to put all primops in one giant file.
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http://hydra.nixos.org/build/34453794
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Verification is slow. Also, we really shouldn't advise users to nuke
their store.
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More spring cleaning.
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install-nix-from-closure improvments
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Manifests have been superseded by binary caches for years. This also
gets rid of nix-pull, nix-generate-patches and bsdiff/bspatch.
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Use the same logic as NixOS' profile and environment setup. Closes #414
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Just wasted a couple hours chasing shadows because the nix store got
corrupted and there was no indication of that anywhere.
Since an install is one-time only, might as well verify. Optimization
showed that the copied files aren't read-only; fixed that as well.
Also, use /bin/sh since there's a good chance that this script will be
run on systems without /bin/bash
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This feature was implemented for Hydra, but Hydra no longer uses it.
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Necessary for multi-threaded commands like "nix verify-paths".
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This specifies the number of distinct signatures required to consider
each path "trusted".
Also renamed ‘--no-sigs’ to ‘--no-trust’ for the flag that disables
verifying whether a path is trusted (since a path can also be trusted
if it has no signatures, but was built locally).
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Locally-built paths are now signed automatically using the secret keys
specified by the ‘secret-key-files’ option.
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The 304 Not Modified was not handled correctly, so the empty result
from the conditional request would overwrite the previous tarball.
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E.g.
$ nix sign-paths -k ./secret -r $(type -p geeqie)
signs geeqie and all its dependencies using the key in ./secret.
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This imports signatures from one store into another. E.g.
$ nix copy-sigs -r /run/current-system -s https://cache.nixos.org/
imported 595 signatures
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https://hydra.nixos.org/build/33908385
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These are content-addressed paths or outputs of locally performed
builds. They are trusted even if they don't have signatures, so "nix
verify-paths" won't complain about them.
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In particular, this eliminates a bunch of boilerplate code.
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Typical usage is to check local paths using the signatures from a
binary cache:
$ nix verify-paths -r /run/current-system -s https://cache.nixos.org
path ‘/nix/store/c1k4zqfb74wba5sn4yflb044gvap0x6k-nixos-system-mandark-16.03.git.fc2d7a5M’ is untrusted
...
checked 844 paths, 119 untrusted
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The flag remembering whether an Interrupted exception was thrown is
now thread-local. Thus, all threads will (eventually) throw
Interrupted. Previously, one thread would throw Interrupted, and then
the other threads wouldn't see that they were supposed to quit.
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Like "nix-store --verify --check-contents", but with the same
advantages as "nix verify-paths".
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Unlike "nix-store --verify-path", this command verifies signatures in
addition to store path contents, is multi-threaded (especially useful
when verifying binary caches), and has a progress indicator.
Example use:
$ nix verify-paths --store https://cache.nixos.org -r $(type -p thunderbird)
...
[17/132 checked] checking ‘/nix/store/rawakphadqrqxr6zri2rmnxh03gqkrl3-autogen-5.18.6’
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Otherwise writing to std::cerr is not thread-safe (in particular,
lines will be randomly duplicated).
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Kill the temporary darwin-specific channel
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The issues have been resolved upstream in the main nixpkgs channel now
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Otherwise we hit the 104 character limit.
http://hydra.nixos.org/build/33562028
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Doing a chdir() is a bad idea in multi-threaded programs, leading to
failures such as
error: cannot connect to daemon at ‘/nix/var/nix/daemon-socket/socket’: No such file or directory
Since Linux doesn't have a connectat() syscall like FreeBSD, there is
no way we can support this in a race-free way.
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Closes https://github.com/NixOS/hydra/pull/286.
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This allows queryPathInfo() to return signatures.
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